Introduction

One of the biggest reasons for poor printing results isn't the printer—it's the artwork.

Every day, printing companies receive logos downloaded from websites, screenshots from WhatsApp, blurry Facebook images, low-resolution JPEGs, or artwork copied from PowerPoint presentations. While these files may look acceptable on a mobile phone or computer screen, they often produce disappointing results when printed on T-shirts.

Preparing artwork correctly is one of the most important steps in achieving sharp details, vibrant colours, and professional-looking apparel. Whether you're ordering a single custom T-shirt, company uniforms, sports jerseys, hoodies, or promotional merchandise, supplying the right file format can save time, reduce production delays, and ensure the final print matches your expectations.

In this guide, we'll explain the best artwork formats for T-shirt printing, the difference between vector and raster files, image resolution requirements, colour modes, and common mistakes to avoid before placing your order.

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Why Artwork Quality Matters

High-quality printing starts with high-quality artwork.

Modern printing methods such as DTF Printing, Embroidery, Heat Transfer Vinyl (HTV), and UV DTF can reproduce incredible detail—but only if the supplied artwork contains enough information.

Poor artwork can result in:

• Blurry logos
• Pixelated text
• Jagged edges
• Incorrect colours
• Missing details
• Delayed production
• Additional artwork charges

Supplying print-ready artwork allows production to begin immediately while ensuring the highest possible print quality.

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Understanding Vector vs Raster Artwork

Before discussing file formats, it's important to understand the two main types of artwork.

Vector Artwork

Vector graphics are created using mathematical paths instead of pixels.

Because they are resolution-independent, vector files can be enlarged to any size without losing quality.

Advantages include:

• Infinite scalability
• Sharp edges
• Perfect for logos
• Easy colour editing
• Best for professional printing

Common vector formats include:

• AI
• PDF (Vector)
• EPS
• SVG

If you have your company logo in vector format, always use it.

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Raster Artwork

Raster images are made up of thousands of tiny coloured pixels.

Unlike vectors, raster images lose quality when enlarged.

Common raster formats include:

• PNG
• JPG
• JPEG
• TIFF

Raster artwork is suitable only when supplied at sufficiently high resolution.

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Best File Formats for T-Shirt Printing

Different file formats serve different purposes.

Choosing the correct one helps ensure the best printing results.

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AI (Adobe Illustrator)

AI is considered the gold standard for logo printing.

Advantages:

• Vector format
• Unlimited resizing
• Editable colours
• Sharp details
• Perfect for logos and text

Best for:

• Company logos
• Uniform printing
• Embroidery
• HTV
• DTF

If available, AI should always be your first choice.

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PDF

Many people think PDF is only for documents, but print-ready PDFs often contain vector artwork.

Advantages:

• Maintains original design
• Supports vectors
• Easy to share
• High compatibility

PDF is one of the most commonly accepted printing formats.

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SVG

SVG is another vector format commonly used by designers.

Advantages include:

• Infinite scalability
• Small file size
• Sharp edges

Ideal for logos and icons.

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EPS

EPS has been used in the printing industry for many years.

Although less common today, it remains an excellent vector format for professional printing.

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PNG

PNG is the most common raster format supplied by customers.

Unlike JPG, PNG supports transparent backgrounds.

Advantages:

• Transparent background
• Suitable for DTF
• Good image quality
• Widely supported

For best results:

• Minimum 300 DPI
• High resolution
• Original artwork

PNG is often the preferred format when vector artwork is unavailable.

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JPG / JPEG

JPG is suitable for photographs but is generally not recommended for logo printing.

Why?

JPG uses compression, which reduces image quality.

It also cannot support transparent backgrounds.

Low-quality JPG files frequently cause:

• Blurry text
• Compression artefacts
• Rough edges

If possible, avoid using screenshots or heavily compressed JPG files.

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Which File Format Is Best?

Whenever possible, provide vector artwork for the best printing results.

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Image Resolution Explained

Resolution refers to the amount of detail contained within an image.

Higher resolution produces sharper prints.

For garment printing, we recommend:

Minimum:

• 300 DPI

Larger artwork should also have sufficient pixel dimensions.

For example:

Small logo:

At least 1000 pixels wide

Large chest print:

2500–4000 pixels wide

Supplying small images downloaded from websites usually results in blurry prints.

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Why Logos Become Blurry

One of the most common questions customers ask is:

"Why does my logo look blurry after printing?"

Common reasons include:

• Screenshot from WhatsApp
• Screenshot from Facebook
• Screenshot from Instagram
• Website image
• Small JPG
• Enlarged low-resolution image

If the original image contains insufficient detail, no printer can recreate information that doesn't exist.

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Transparent Backgrounds

For most apparel printing methods, transparent backgrounds are preferred.

A transparent PNG allows only the artwork to be printed.

Without transparency, unwanted white or coloured backgrounds may appear around your logo.

Always check that your PNG file truly has a transparent background before sending it.

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RGB vs CMYK

Many customers notice that printed colours look slightly different from what they see on their computer or mobile phone.

This happens because screens display colours using RGB (Red, Green, Blue), while printers reproduce colours using CMYK (Cyan, Magenta, Yellow, Black).

Although modern printing technology can achieve excellent colour accuracy, slight variations are normal, especially for fluorescent colours, neon shades, and highly saturated tones.

When colour consistency is critical, discuss colour expectations with your printing provider before production.

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Fonts and Text

If your artwork contains editable fonts, it's recommended to convert them into outlines before sending the file.

Why?

If your printer doesn't have the same font installed, the software may automatically substitute another font, causing layout changes.

Converting text into outlines preserves the original design exactly as intended.

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Common Artwork Mistakes

Many production delays occur because of simple artwork issues.

Common mistakes include:

• Sending screenshots instead of original files
• Low-resolution logos
• Missing fonts
• Non-transparent backgrounds
• Incorrect colours
• Thin lines that are too small to print
• Extremely small text
• Images copied from Google
• Artwork saved from social media

Avoiding these mistakes helps ensure smoother production and better print quality.

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Artwork Checklist Before Ordering

Before sending your artwork, check the following:

✅ AI, PDF, SVG or EPS if available

✅ High-resolution PNG if vector files are unavailable

✅ Transparent background

✅ 300 DPI or higher

✅ Fonts converted to outlines

✅ Correct logo colours

✅ Spelling checked

✅ Artwork centred correctly

Completing this checklist helps reduce production time and ensures the best possible results.

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Frequently Asked Questions

Which file format is best for T-shirt printing?

AI and vector PDF are the best options because they maintain perfect quality regardless of size.

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Can I use a PNG logo?

Yes.

As long as the PNG has a transparent background and is supplied at high resolution, it can produce excellent printing results.

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Can I send a WhatsApp image?

WhatsApp compresses images, reducing their quality.

Whenever possible, send the original artwork instead.

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Why can't you print my Facebook logo?

Images downloaded from websites and social media are usually low resolution and not suitable for professional printing.

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Can you redraw my logo?

Yes.

If high-quality artwork is unavailable, our design team can recreate or vectorise your logo for professional printing.

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About EVNIX

EVNIX specialises in premium custom apparel printing in Malaysia, offering DTF Printing, UV DTF Sticker Printing, Heat Transfer Vinyl (HTV), Embroidery, Corporate Uniform Printing, Custom T-Shirts, Polo Shirts, Hoodies, Caps, Tote Bags, Aprons, and promotional merchandise.

Our experienced team reviews every artwork before production and will recommend the most suitable file format or assist with artwork preparation to ensure the best possible printing results.

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Conclusion

Preparing artwork correctly is one of the easiest ways to achieve professional-quality apparel printing. Choosing the right file format, supplying high-resolution artwork, and avoiding common mistakes can significantly improve print quality while reducing production delays.

Whether you're printing company uniforms, promotional T-shirts, sports jerseys, or branded merchandise, investing a few extra minutes in preparing your artwork helps ensure the final product looks exactly as intended.

If you're unsure whether your artwork is print-ready, the team at EVNIX is happy to review your files and recommend the best solution before production begins.